The sound is broadcast over radio stations . If you have a radio at home that uses batteries you could use that. Maybe download a app and see if you can tune to a certain station. If these aren't available you could use this as a lesson to learn how to lip read. Hope I were helpful. Enjoy the movie🎬
When i went i dont recall seeing any poles with speakers. They told us which station to tune to. My only other suggestion would be park close enough to a car and ask if you could listen in. Enjoy your time!
Plus they got speakers on the poles where u park
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